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Lens stray light detection device and lens stray light detection method

A detection device and detection method technology, applied in the direction of testing optical performance, etc., can solve problems such as misjudgment, reduce the accuracy of stray light analysis, reduce the quality of lens imaging, etc., and achieve the effect of improving accuracy

Inactive Publication Date: 2011-11-09
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to know exactly which direction the lens has stray light in the stray light detection method of illuminating the handheld lens with a flashlight, which reduces the accuracy of stray light analysis, which in turn leads to misjudgment of the cause of stray light and reduces the imaging quality of the lens

Method used

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  • Lens stray light detection device and lens stray light detection method
  • Lens stray light detection device and lens stray light detection method
  • Lens stray light detection device and lens stray light detection method

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] see figure 1 , the lens stray light detection device 100 provided by the embodiment of the present invention is used to detect the stray light of the lens 200 . The lens 200 includes at least one lens (not shown).

[0036] The lens stray light detection device 100 includes a workbench 10, a lens bearing seat 20 arranged on the tabletop of the workbench 10, a light source holder 30 arranged on the tabletop of the workbench 10, and a light source 40 arranged on the top of the light source holder 30. , an image capture unit 50 and a signal processing unit 60 electrically connected to the image capture unit 50 . The lens holder 20 is used for carrying the lens 200 .

[0037] The workbench 10 also has a track 101 formed on the workbench 10 , a plurality of scale marks 102 and a notch 103 arranged on the side of the workbench 10 and communicating with the...

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Abstract

The invention relates to a lens stray light detection device for detecting stray light of a lens. The lens stray light detection device comprises a workbench, a lens bearing seat arranged on the surface of the workbench, a light source bearing seat arranged on the surface of the workbench, a rail formed on the surface of the workbench, a light source arranged at the top of the light source bearing seat, and an image acquisition unit. The lens bearing seat is used for bearing the lens. The light source bearing seat is glidingly connected with the rail. When the light source bearing seat glides along the rail, rays emitted by the light source face the lens all the time. The image acquisition unit receives the rays from the lens to form images. The workbench is provided with a plurality of scale lines for indicating the angles of the rays emitted by the light source relative to the optic axis of the lens. The invention also relates to a lens stray light detection method.

Description

technical field [0001] The invention relates to a stray light detection device and method, in particular to a stray light detection device for a lens and a lens stray light detection method. Background technique [0002] With the continuous development of digital technology, digital cameras have been widely used by people, especially in recent years, portable electronic devices such as mobile phones and PDAs (Personal Digital Assistant, personal digital assistants) are also rapidly developing towards high performance and multi-functionality. Combining with these portable electronic devices has become the key to the development of mobile multimedia technology. While people's demand for digital cameras continues to grow, the requirements for digital camera performance are also getting higher and higher. [0003] However, after the lens is assembled, due to the dimensional tolerances of the materials used, surface roughness, surface reflection and refraction, the feasibility o...

Claims

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Application Information

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IPC IPC(8): G01M11/02
Inventor 林宗瑜
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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